﻿using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace Lite.ExcelLibrary.BinaryFileFormat
{
    public partial class BOUNDSHEET : Record
    {
        public BOUNDSHEET(Record record) : base(record) { }

        public BOUNDSHEET()
        {
            this.Type = RecordType.BOUNDSHEET;
        }

        /// <summary>
        /// Absolute stream position of the BOF record of the sheet represented by this record.
        /// </summary>
        public UInt32 StreamPosition;

        /// <summary>
        /// 00H = Visible, 01H = Hidden, 02H = Strong hidden
        /// </summary>
        public Byte Visibility;

        /// <summary>
        /// 00H = Worksheet, 02H = Chart, 06H = Visual Basic module
        /// </summary>
        public Byte SheetType;

        /// <summary>
        /// BIFF8: Unicode string, 8-bit string length
        /// </summary>
        public String SheetName;

        public override void Decode()
        {
            MemoryStream stream = new MemoryStream(Data);
            BinaryReader reader = new BinaryReader(stream);
            this.StreamPosition = reader.ReadUInt32();
            this.Visibility = reader.ReadByte();
            this.SheetType = reader.ReadByte();
            this.SheetName = this.ReadString(reader, 8);
        }

        public override void Encode()
        {
            MemoryStream stream = new MemoryStream();
            BinaryWriter writer = new BinaryWriter(stream);
            writer.Write(StreamPosition);
            writer.Write(Visibility);
            writer.Write(SheetType);
            Record.WriteString(writer, SheetName, 8);
            this.Data = stream.ToArray();
            this.Size = (UInt16)Data.Length;
            base.Encode();
        }

    }
}
